title: Misalignment tolerable coil structure for biomedical applications with wireless power transfer.
abstract: Coil-misalignment is one of the major hurdles for inductively coupled wireless power transfer in applications like retinal prosthesis. Weak magnetic flux linkage due to coil misalignments would significantly impair the power efficiency. A novel receiver configuration with high misalignment tolerance is presented in this paper. The proposed receiver is composed of two receiver coils placed orthogonally, so as to reduce the variation of mutual inductance between transmitting and receiving coils under misalignment conditions. Three different receiver coil structures are analyzed and compared using the same length of wire. Theoretical predictions have been confirmed with measurement results.
authors.forename: Jeff P W
authors.initials: JP
authors.lastname: Chow
authors.forename: Nan
authors.initials: N
authors.lastname: Chen
authors.forename: Henry S H
authors.initials: HS
authors.lastname: Chung
authors.forename: Leanne L H
authors.initials: LL
authors.lastname: Chan
mesh_terms: D020811:Biomedical Technology / Q000295:instrumentation*; D011211:Electric Power Supplies; D004581:Electronics; D059015:Wireless Technology / Q000295:instrumentation*